CVE-2023-27152
CVE-2023-27152 is a critical-severity vulnerability in Opnsense with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-307.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- EPSS exploit prediction: 1% (55th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-307
- Affected product: Opnsense
- Published:
- Last modified:
Description
DECISO OPNsense 23.1 does not impose rate limits for authentication, allowing attackers to perform a brute-force attack to bypass authentication.
Frequently asked questions
- What is CVE-2023-27152?
- DECISO OPNsense 23.1 does not impose rate limits for authentication, allowing attackers to perform a brute-force attack to bypass authentication.
- How severe is CVE-2023-27152?
- CVE-2023-27152 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2023-27152 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-27152?
- CVE-2023-27152 affects Opnsense. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-27152?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2023-27152 published?
- CVE-2023-27152 was published on 2023-10-23 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:opnsense:opnsense:23.1:*:*:*:*:*:*:*
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